Related Clues:

• Something a little fishy, perhaps
• Sign of an uncleaned fridge
• Trash barge emanation
• Trait of banana oil
• Smelly smell
• Something wafting
• Horrific, lingering smell
• Target of a spray
• Skunk smell
• Repulsive smell
• Product of pungency
• Ozone feature
• Sign of biodegradation
• Possible memory trigger
• Sign of bad food, perhaps